--TEST--
mysqli_ping()
--SKIPIF--
<?php
require_once('skipif.inc');
require_once('skipifemb.inc');
require_once('skipifconnectfailure.inc');
?>
--FILE--
<?php
    require_once("connect.inc");

    $tmp    = NULL;
    $link   = NULL;

    if (!is_null($tmp = @mysqli_ping()))
        printf("[001] Expecting NULL, got %s/%s\n", gettype($tmp), $tmp);

    require('table.inc');

    if (!is_null($tmp = @mysqli_ping($link, $link)))
        printf("[002] Expecting NULL, got %s/%s\n", gettype($tmp), $tmp);

    var_dump(mysqli_ping($link));

    // provoke an error to check if mysqli_ping resets it
    $res = mysqli_query($link, 'SELECT * FROM unknown_table');
    if (!($errno = mysqli_errno($link)))
        printf("[003] Statement should have caused an error\n");

    var_dump(mysqli_ping($link));
    if ($errno === mysqli_errno($link))
        printf("[004] Error codes should have been reset\n");

    mysqli_close($link);

    if (false !== ($tmp = mysqli_ping($link)))
        printf("[005] Expecting false, got %s/%s\n", gettype($tmp), $tmp);

    print "done!";
?>
--EXPECTF--
bool(true)
bool(true)

Warning: mysqli_ping(): Couldn't fetch mysqli in %s on line %d
done!
